The Peloponnesus is a peninsula in southern Greece, and it is home to three cities: Argos (5 letters), SPARTA (6 letters), and Corinth (7 letters). Argos is an ancient city located in the northeastern part of the Peloponnesus. It was once a powerful city-state and is now a modern city. SPARTA is located in the south-central part of the Peloponnesus and is known for its militaristic culture. Corinth is located in the north-central part of the Peloponnesus and was an important trading center in ancient times. All three cities are important parts of Greek history and culture.